23 struct Streamer;
27 inline std_ostream& operator << (std_ostream&, const Streamer<Foo>&);
29 void test(const Streamer<Foo>& foo)  in test()
35 struct Streamer  struct
37 …friend std_ostream& operator << (std_ostream& o, const Streamer& f) // expected-error{{redefinitio…  in operator <<()
39             Streamer s(f);  in operator <<()
44     Streamer(const STRUCT_TYPE& s) : s(s) {}  in Streamer()  argument
51 std_ostream& operator << (std_ostream&, const Streamer<Foo>&);  argument
55 template struct Streamer<Foo>;  variable
59 std_ostream& operator << (std_ostream& o, const Streamer<Foo>&) // expected-note{{is here}}  in operator <<()
67 void Streamer<Foo>::operator () (std_ostream& o) const // expected-note{{requested here}}  in operator ()()